"Cheeseburger": A veteran of covert warfare, Cheeseburger is an American agent with the most experience out of the team. He can adapt to various situations and is considered highly modular in terms of equipment and tactics. He is trained in many shooting stances and is optimized for any range of combat situation, from extremely long distance shooting to close-up combat. It is also said by lovers that he is quite tasty.

"Vodka": A ruthless agent, Vodka hails from Russia's own covert warfare agency, and is currently being handled by the American agency (somewhat as a "friendly gift"). He has seen lots of action over the years, and lots of violence. He has two specialties: infiltrating in public (blending in with crowds, sneaking into social scenes) and intimidating enemies through violent methods. Vodka's brutal, perhaps sadistic nature makes his superiors believe he's more suited to being a shock trooper than an expert in stealth, yet his skills at hiding in the shadows and launching surprise attacks prove otherwise. He sees Cheeseburger as a rival, and enjoys competing with him.

"Squid": A rookie agent, Squid is an English born soldier with some experience in the battlefield, and is new to working in espionage. He trains directly under Cheeseburger and Vodka. His frequent misuse of equipment (more specific, accidentally activating his personal EMP emission counter-measure device) earned him the nickname of "Squid" from agent Cheeseburger, which stuck as his code name, a reminder to not mess up as frequently. Squid has a lot of potential, but requires extensive training from more experienced agents to reach that excellence.

Due to classified intel, the below image is the best possible picture we could find of the agents in action.
Go-go shitty Photoshop skills!

You guys got a team of secret agents that kick ass?